Class V A tank is 25 m long, 12 m wide and 6 m deep. The cost of plastering its walls and bottom at 75 paise per sq. m, is: Rs. 456 Rs. 458 Rs. 558 Rs. 568 Which of the following is a reasonable measure for the area of a classroom? 100 square inches 100 square feet 100 square yards 100 square miles The diagonal of a rectangle is 41 cm and its area is 20 sq. cm. The perimeter of the rectangle must be: 9 cm 18 cm 20 cm 41 cm The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is: 40% 42% 44% 46% The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle? 16 cm 24 cm Data inadequate 18 Do you really want to submit this quiz? Cancel Submit Quiz